Construction of bogie trucks for railway and like vehicles



Oct. 2, 1928. 1,686,182

G. H. SHEFFIELD ET AL CONSTRUCTION OF BOGIE TRUCKS FOR RAILWAY AND LIKE VEHICLES Original Filed June 22, 1926 wen/T 85 Patented Get. 2, 1928.

UNITED STAT S GEORGE HARRISON SHEFFIELD AND JAMES DENIS TWINBERBOW, OF LONDON, ENG- LAND, ASSIGNOBS TO G. H. SHEFFIELD COMPANY, ENGINEERS, LIMITED, OF

LONDON, ENGLAND.

CONSTRUCTION or Boers Tnncxs FOR RAILWAY AND LIKE VEHICLES.

Original application filed ,Tune 22, 1926, Serial No. 117,823, and in Great Britain June 30, 192 5 Divided and this application filed July 12, 1927. Serial No. 205,228.

This invention relates to the construction of springs upon either side of the central pivot. The object of the present invention is to improve the construction and arrangement of the frames of such bogie trucks, and the invention consists in a bogie truck of the kind referred to in which the side frames of the truck are connected by three fixed members, an upper member connecting the upper parts of the side frames and two lower members connecting the lower parts of said side frames and spaced apart to clear the springs which take the load.

The invention also consists in a bogie truck of the kind referred to in which the transom or main transverse member of the truck consists of three parts, an upper part comprising a beam with its major axis horizontal and two lower parts each of which consists of an an gle member, the latter being spaced apart to clear the springs which take the load.

The accompanying drawings illustrate one mode of carrying out the invention.

Figure 1 is a part sectional longitudinal elevation of a portion of a bogie truck in ac-. cordance with the invention. I y

Figure 2 is atransverse view'half in section and half in elevation and .Figure 3 is a plan partly in section.

In carrying our invention into effect in one convenient manner in its application to a bogie for freight cars we may arrange the springs to take the load on each side of the central pivot as described in the specification of our co-p'ending application No. 117,823 or as described in the British specification No. 14,147 of 1909 or otherwise.

The transom or main transverse member consists of three parts, an upper part a and twolower members I). The upper member is formed as a beam with the ma or axis of the section horizontal so as to afford great stiff- 'ness in transmitting buffer shocks, and the lower transverse members 5 are formed as angles and are spaced apart as shown in order to clear the springs and to form a tie between the main frames at each sideand also to aotas a truss to resist vertical bending moment on the cross members while at the same time completing the bracing of the side frames. The

box girders,theouter faces of which are closedor partially closed by-means of a plate f. Vertical angles 9 are secured to'the end plate 7 and to the side plates 0' and the various parts are united together by riveting or otherwise.

The invention is not to be limited to the precise details hereinbefore given as we may vary the/number and mode of disposition of the bearing springs, as also the means adopted for transmitting the load thereto depending upon the design of bogie truck to which the invention is to be applied or any practical requirements that may have to be fulfilled.

Having now described our invention what we claim as new and desire to secure by Letters Patent is V i 1. A. bogie truck of the kind referred to comprisingin combination two side frames and a cross transom connecting said frames,

said transom being composed of an upper spaced apart fromone another and apartalso from the upper beam member.

Fncs.

2. A bogie truckof the kind referred to comprising in combination two side frames,

a cross transom connecting said side frames.

composed of an upper member and two spaced lower members, and plates uniting the ends of said members to form box girder ends for the transom.

3. A bogie truck of the kind referred to comprising in combination side frames, a cross transom connecting said side frames and composed of an upper member consisting. of 'a beam with 1ts IIlELjOI' axis horizontal and two lower angle members, and side plates and upper and lower plates uniting the ends of said members to form a box girder construction. V 4. A bogle truck of theikmd' referred to comprising in oombinatlon slde frames, a

crosstransom unitingsaid side frames and 7 consisting of an upper member composed of a beam with'its major axis horizontal, and two lower angle members spaced apart from one another, load bearing springs arranged between said spaced members and side'plates and upper and lower plates uniting the ends of said three'transom memberstoform a box girder construction at each end thereof.

Int'estimony whereof we have signed our names tothis specification, GEORGE HARRISON SHEFFIELD. JAMES DENIS TWINBERROW. 7 

